Flashcards: Animal classification mammals birds

What are mammals?

Mammals are warm-blooded animals that have hair or fur. They usually give birth to live young and nurse them with milk.

What are birds?

Birds are warm-blooded animals with feathers, wings, and beaks. They lay eggs and can often fly.

True or false: All mammals can fly.

False, because most mammals cannot fly. Only bats are capable of true flight.

Difference between mammals and birds

Mammals have fur and produce milk, while birds have feathers and lay eggs. Mammals are usually larger than birds.

Fill in the blank: All mammals are ____ blooded.

warm-blooded.

What do mammals use to nurse their young?

Mammals use milk produced by mammary glands to feed their young.

Example of a mammal.

Dogs, cats, and humans are all examples of mammals.

Example of a bird.

Eagles, sparrows, and penguins are all examples of birds.

True or false: All birds can swim.

False, because not all birds are adapted to swimming. Some, like ostriches, cannot swim.

What is unique about bird bones?

Bird bones are hollow and lightweight, which helps them fly easily.

Do all mammals have teeth?

No, some mammals, like whales, have lost their teeth over time.

Question: How do birds keep warm?

Birds use feathers to trap warm air and keep their bodies insulated.